KR102511841B1 - pressure equalization valve - Google Patents

pressure equalization valve Download PDF

Info

Publication number
KR102511841B1
KR102511841B1 KR1020217009071A KR20217009071A KR102511841B1 KR 102511841 B1 KR102511841 B1 KR 102511841B1 KR 1020217009071 A KR1020217009071 A KR 1020217009071A KR 20217009071 A KR20217009071 A KR 20217009071A KR 102511841 B1 KR102511841 B1 KR 102511841B1
Authority
KR
South Korea
Prior art keywords
valve
vent
pressure
brake
membrane
Prior art date
Application number
KR1020217009071A
Other languages
Korean (ko)
Other versions
KR20210046776A (en
Inventor
마크 헤밍스
나이젤 앤스테이
저스틴 피어
Original Assignee
크노르-브렘제 시스테메 퓌어 쉬에넨파쩨우게 게엠베하
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 크노르-브렘제 시스테메 퓌어 쉬에넨파쩨우게 게엠베하 filed Critical 크노르-브렘제 시스테메 퓌어 쉬에넨파쩨우게 게엠베하
Publication of KR20210046776A publication Critical patent/KR20210046776A/en
Application granted granted Critical
Publication of KR102511841B1 publication Critical patent/KR102511841B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3605—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force wherein the pilot valve is mounted in a circuit controlling the working fluid system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/025—Electrically controlled valves
    • B60T15/027—Electrically controlled valves in pneumatic systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/36—Other control devices or valves characterised by definite functions
    • B60T15/52—Other control devices or valves characterised by definite functions for quick release of brakes, e.g. for influencing counter- pressure in triple valve or recirculating air from reservoir or brake cylinder to brake pipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
    • B60T8/1705—Braking or traction control means specially adapted for particular types of vehicles for rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
    • B60T8/3235—Systems specially adapted for rail vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/81—Braking systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Braking Arrangements (AREA)
  • Regulating Braking Force (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

레일 브레이크 시스템용 압력 균등화 밸브 장치가 각각 제어 챔버를 갖는 유지 밸브(2) 및 멤브레인 통기 밸브(3)를 포함한다. 유지 밸브(2) 및 통기 밸브(3)는 해당 솔레노이드 밸브(6, 10)에 의해 파일럿된다. 추가 솔레노이드 밸브(9)는 통기 밸브의 제어 챔버에 연결되어, 통기 밸브 멤브레인 양측의 압력을 브레이크 실린더 압력과 균등화시켜 멤브레인 양측과의 압력 차이를 감소시킨다. 이는 통기 시간을 개선시킨다. A pressure equalization valve device for a rail brake system includes a retaining valve (2) and a membrane vent valve (3) each having a control chamber. The maintenance valve (2) and vent valve (3) are piloted by corresponding solenoid valves (6, 10). An additional solenoid valve (9) is connected to the control chamber of the vent valve, equalizing the pressure on both sides of the vent valve membrane with the brake cylinder pressure to reduce the pressure difference between the two sides of the membrane. This improves aeration time.

Description

압력 균등화 밸브pressure equalization valve

본 발명은 전기 공압식 레일 브레이크(rail brake) 시스템에서 사용하기 위한 밸브에 관한 것이다.The present invention relates to a valve for use in an electro-pneumatic rail brake system.

레일 브레이크 시스템들은, 통상적인 유지 보수 간격이 약 7년인 다른 공압 브레이크 시스템들에 비해 매우 긴 사용 수명을 갖는 것을 특징으로 한다. 그 브레이크 시스템은 안전이 중요하므로 구성 부품들은 그 사용 수명을 확실하게 달성할 필요가 있는데, 명백한 안전 요건들이 있을 뿐만 아니라 다른 차량들에 비해 현장에서 유지 보수를 수행하는 데 어려움들이 있기 때문이다. Rail brake systems are characterized by a very long service life compared to other pneumatic brake systems with a typical maintenance interval of about 7 years. The brake system is safety-critical, so the components need to reliably achieve their service life, not only because there are clear safety requirements, but also because there are difficulties in performing maintenance in the field compared to other vehicles.

이러한 요건에 추가로, 특히 여객 노선의 현대식 열차들은 차륜 슬라이드 방지(wheel slide protection) 등의 기능들을 포함하는 보다 정교한 브레이크 시스템이 필요하다. 차륜 슬라이드 방지는, 정차 시간을 감소시키지 않을 뿐만 아니라 차륜 슬라이드 시 트랙 및 차륜 손상을 감소시키고, 또한 안전성에 대해 타협하지 않고 열차들의 더 빠른 속도와 더 좁은 배차 간격이 가능하다는 점에서 레일 네트워크의 더 많은 사용을 용이하게 하는, 중요한 안전 향상 기능이다.In addition to these requirements, modern trains, especially on passenger routes, require more sophisticated brake systems that include features such as wheel slide protection. Wheel-slide prevention is a better tool for rail networks in that it not only reduces stopping time, but also reduces track and wheel damage during wheel-slide, and also allows higher speeds and tighter dispatch intervals for trains without compromising safety. It is an important safety enhancement that facilitates many uses.

EP3183147은 차륜 슬라이드 방지 기능을 갖는 레일 브레이크 시스템에서 사용하기 위한 공압식 멤브레인 밸브를 설명한다. 그 구조는 브레이크 시스템 구조의 발전을 보였지만, 통기(vent) 밸브 멤브레인이 얼마나 빨리 개방될 수 있는지에 대한 한계가 있고, 이는 향후 성능 향상들을 제한한다.EP3183147 describes a pneumatic membrane valve for use in a rail brake system with anti-wheel slide function. The structure represents an evolution of brake system structure, but there is a limit to how quickly the vent valve membrane can open, which limits future performance improvements.

따라서, 감소된 밸브 통기 시간으로 작동할 수 있는 공압식 밸브가 필요하다.Accordingly, there is a need for a pneumatic valve that can operate with reduced valve vent times.

본 발명에 따르면, 브레이크 실린더들로의 공기의 흐름을 제어하도록 구성된 레일 브레이크 시스템용 브레이크 밸브 장치로서, 각각 제어 챔버(chamber)를 가지는 유지 밸브 및 통기 밸브를 포함하고, 이 통기 밸브는 멤브레인 밸브이며, 유지 밸브 및 통기 밸브는 해당 솔레노이드 밸브에 의해 파일럿(pilot)되며, 추가 솔레노이드 밸브가 통기 밸브의 제어 챔버에 연결되어 통기 밸브 멤브레인 양측의 압력을 브레이크 실린더 압력과 균등화시켜 그 멤브레인 양측의 압력 차이를 감소시키는 브레이크 밸브 장치가 제공된다.According to the present invention, a brake valve device for a rail brake system configured to control the flow of air to brake cylinders, comprising a retaining valve and a vent valve each having a control chamber, the vent valve being a membrane valve , the retention valve and the vent valve are piloted by the corresponding solenoid valve, and an additional solenoid valve is connected to the control chamber of the vent valve to equalize the pressure on both sides of the vent valve membrane with the brake cylinder pressure, thereby reducing the pressure difference on both sides of the membrane. A brake valve device for reducing is provided.

바람직하게는, 그 추가 솔레노이드 밸브는 유지 멤브레인 밸브의 출구와 유체 연통한다. 바람직하게는, 그 추가 솔레노이드 밸브는 통기 솔레노이드 밸브의 입구와 유체 연통한다. 바람직하게는, 그 추가 솔레노이드 밸브는 브레이크 압력을 받는다.Preferably, the additional solenoid valve is in fluid communication with the outlet of the retaining membrane valve. Preferably, the additional solenoid valve is in fluid communication with the inlet of the vent solenoid valve. Preferably, the additional solenoid valve is subjected to brake pressure.

그 시스템은 브레이크 실린더를 가압하고 통기시키는 데 사용되는 2개의 공압식 멤브레인 밸브를 포함한다. 제어 챔버들 내의 압력이 공급 압력에 연결된 솔레노이드 밸브들에 의해 제어된다. 추가 솔레노이드 밸브는 통기 멤브레인 밸브의 제어 챔버에 연결되며, 이는 멤브레인 표면 양측의 압력 차이를 감소시키기 위해 멤브레인 양측의 압력을 브레이크 실린더 압력과 균등화 시킬 수 있다.The system includes two pneumatic membrane valves used to pressurize and vent the brake cylinders. The pressure in the control chambers is controlled by solenoid valves connected to the supply pressure. An additional solenoid valve is connected to the control chamber of the vent membrane valve, which can equalize the pressure on both sides of the membrane with the brake cylinder pressure to reduce the pressure difference on both sides of the membrane surface.

통기 멤브레인 표면 양측의 압력의 균등화는 통기 밸브 멤브레인을 개방하는 데 필요한 시간을 상당히 감소시킨다. 본 발명의 구조는 또한 그 멤브레인에 유도되는 응력을 상당히 감소시켜서, 공지의 해결법들에 비해 작동 수명을 증가시킨다.Equalization of the pressure on both sides of the vent membrane surface significantly reduces the time required to open the vent valve membrane. The structure of the present invention also significantly reduces the stress induced in the membrane, increasing operating life over known solutions.

이하, 본 발명의 예시적인 실시예가 도면을 참조하여 보다 상세히 설명될 것이다.
도 1은 본 발명에 따른 밸브 장치를 개략적으로 도시한다.
도 2는 작동 개요를 도시한다.Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the drawings.
1 schematically shows a valve device according to the invention.
2 shows an operational overview.

도 1은 유지 멤브레인(2) 및 통기 멤브레인(3)을 갖는 밸브 블록(1)을 포함하는 밸브 장치를 개략적으로 도시한다. 유지 멤브레인(2)의 입구(4)는 초크(choke)를 통해 공급 압력(5)에 연결되고 유지 솔레노이드(6)에 의해 파일럿된다.1 schematically shows a valve device comprising a valve block 1 with a retaining membrane 2 and a ventilation membrane 3 . The inlet (4) of the maintenance membrane (2) is connected to the supply pressure (5) via a choke and piloted by a maintenance solenoid (6).

유지 솔레노이드(6)가 공급 압력(5)으로부터 압력을 공급받고, 그 공급 압력(5)은 통기 솔레노이드(10)와 직렬로 배치된 균등화 솔레노이드(9)에도 압력을 공급한다. 균등화 솔레노이드(9)는 밸브 블록(1)과 유체 연통하고 유지 멤브레인(2)의 출구(7)로부터 브레이크 압력을 받아들인다. 유지 솔레노이드는 스프링 수단들에 의해 폐쇄 위치로 편향되는 유지 멤브레인(2)에 파일럿 압력을 공급한다.The maintenance solenoid (6) is supplied with pressure from a supply pressure (5), which also supplies pressure to an equalization solenoid (9) arranged in series with the vent solenoid (10). The equalization solenoid (9) is in fluid communication with the valve block (1) and receives brake pressure from the outlet (7) of the retaining membrane (2). The retaining solenoid supplies pilot pressure to the retaining membrane 2 which is biased into a closed position by spring means.

유지 멤브레인(2)의 출구(7)가 브레이크 실린더(8)들에 대한 출구와 유체 연통하고 또한 균등화 솔레노이드(9) 및 통기 멤브레인(3)의 입구와도 유체 연통한다. 통기 멤브레인은 통기 솔레노이드(10)에 의해 파일럿되고, 통기 멤브레인의 출구는 대기로 배기된다.The outlet 7 of the retaining membrane 2 is in fluid communication with the outlet to the brake cylinders 8 and also in fluid communication with the equalization solenoid 9 and the inlet of the vent membrane 3 . The ventilation membrane is piloted by the ventilation solenoid 10, and the outlet of the ventilation membrane is exhausted to the atmosphere.

브레이크 해제 시, 유지 솔레노이드 밸브(6)에 전기를 공급하여 유지 밸브의 제어 챔버에 공급 압력을 가함으로써, 유지 멤브레인(2)이 폐쇄된 상태로 유지된다. 브레이크 실린더는, 통기 솔레노이드 밸브(9)에 전기를 공급하여 통기 밸브 제어 챔버(3)를 배기시킴으로써, 대기로 통기된다.When the brake is released, the holding solenoid valve 6 is energized to apply supply pressure to the control chamber of the holding valve, so that the holding membrane 2 is kept closed. The brake cylinder is vented to the atmosphere by energizing the vent solenoid valve 9 to exhaust the vent valve control chamber 3.

브레이크 작동 시, 통기 솔레노이드 밸브(9)의 전기를 차단하여 통기 밸브 제어 챔버에 공급 압력(5)을 가함으로써, 통기 멤브레인(3)이 폐쇄된다. 이어서, 유지 밸브 멤브레인(2)은, 유지 솔레노이드 밸브(6)의 전기를 차단하여 유지 밸브 제어 챔버를 배기시킴으로써, 개방된다. 따라서, 공급 압력(5)이 브레이크 실린더에 가해진다.When the brake is operated, the ventilation solenoid valve (9) is de-energized to apply the supply pressure (5) to the ventilation valve control chamber, thereby closing the ventilation membrane (3). Then, the retention valve membrane 2 is opened by de-energizing the retention solenoid valve 6 to evacuate the retention valve control chamber. Thus, supply pressure 5 is applied to the brake cylinder.

브레이크 작동에 후속해서 브레이크 실린더의 압력을 유지하기 위해, 유지 솔레노이드 밸브(6)에 전기를 공급하여 유지 밸브 제어 챔버에 공급 압력(5)의 적용을 가능케 함으로써, 유지 멤브레인(2)이 폐쇄된다. 이어서, 통기 밸브 멤브레인(3) 양측의 압력은, 균등화 솔레노이드 밸브(9)에 전기를 공급함으로써, 브레이크 실린더 압력과 균등화될 수 있다.To maintain the pressure in the brake cylinder following brake operation, the holding solenoid valve 6 is energized to enable application of the supply pressure 5 to the holding valve control chamber, thereby closing the holding membrane 2 . Then, the pressure on both sides of the vent valve membrane 3 can be equalized with the brake cylinder pressure by energizing the equalization solenoid valve 9 .

브레이크 실린더 내의 압력을 통기시키기 위해, 통기 솔레노이드 밸브(10)를 개방함으로써 통기 밸브 제어 챔버가 배기된다. 그 제어 챔버가 브레이크 실린더 압력과 균등화가 되어 있었기 때문에, 멤브레인 양측의 차압에 의존하는 밸브를 개방하는 데 걸리는 시간은 종래 기술 구조에 비해 감소한다. To vent the pressure in the brake cylinder, the vent valve control chamber is evacuated by opening the vent solenoid valve 10 . Since the control chamber has been equalized with the brake cylinder pressure, the time required to open the valve which depends on the differential pressure on both sides of the membrane is reduced compared to the prior art structure.

통기 상태로부터 유지 상태로 돌아가기 위해, 통기 솔레노이드 밸브(10) 및 균등화 솔레노이드 밸브(9)의 전기를 차단하여 통기 밸브 제어 챔버에 공급 압력을 가함으로써, 통기 밸브 멤브레인(3)이 먼저 폐쇄된다. 일정 시간이 경과한 후, 균등화 솔레노이드 밸브(9)에 전기를 공급함으로써, 통기 멤브레인 양측의 압력이 균등화될 수 있다. 유지를 적용하는 것과 압력을 균등화하는 것 사이의 시간은 밸브 멤브레인의 크기와 구조에 따라 달라진다.To return from the venting state to the holding state, the vent solenoid valve 10 and the equalization solenoid valve 9 are de-energized to apply supply pressure to the vent valve control chamber, so that the vent valve membrane 3 is first closed. After a certain period of time has elapsed, by supplying electricity to the equalization solenoid valve 9, the pressures on both sides of the ventilation membrane can be equalized. The time between applying hold and equalizing pressure depends on the size and geometry of the valve membrane.

도 2는 솔레노이드 밸브들의 예시적인 작동 개요를 도시하는 것으로, 유지 및 균등화 솔레노이드들에 실질적으로 동시에 전기가 공급되고 있다. 이어서, 통기 밸브 솔레노이드에 전기가 공급되고, 시간 T1 후에 균등화 밸브의 전기가 차단되어, 통기 멤브레인 작동 후 더 높은 압력으로 통기 멤브레인을 다시 폐쇄할 준비를 갖춘다.Figure 2 shows an exemplary operational schematic of solenoid valves, wherein the maintenance and equalization solenoids are energized substantially simultaneously. The vent valve solenoid is then energized, and the equalization valve is de-energized after time T1, ready to close the vent membrane again with higher pressure after actuation of the vent valve.

T2는 압력을 균등화하기 위해 균등화 솔레노이드가 작동되기 전에 통기 멤브레인이 더 높은 압력으로 폐쇄되도록 보장하는 데에 걸리는 시간이다. 시간 T1 및 T2는 다이어프램(diaphragm) 밸브의 고무의 거동이 온도에 따라 변하기 때문에 조건들에 따라 달라진다. 대기 온도, 압력 및 습도에서 예시적인 시간은 60ms이다.T2 is the time taken to ensure that the aeration membrane closes at a higher pressure before the equalization solenoid is actuated to equalize the pressure. Times T1 and T2 depend on conditions because the behavior of the rubber of a diaphragm valve changes with temperature. An exemplary time at ambient temperature, pressure and humidity is 60 ms.

Claims (6)

브레이크 실린더들로의 공기의 흐름을 제어하도록 구성된 레일 브레이크(rail brake) 시스템용 브레이크 밸브 장치로서,
유지 밸브(2) 및 통기 밸브(3)를 포함하며, 상기 유지 밸브(2) 및 상기 통기 밸브(3)는 각각 제어 챔버(chamber)를 가지고, 상기 통기 밸브(3)는 멤브레인 밸브이며, 상기 유지 밸브(2)는 유지 솔레노이드 밸브(6)에 의해 조작(pilot)되고, 상기 통기 밸브(3)는 통기 솔레노이드 밸브(10)에 의해 조작되는 브레이크 밸브 장치에 있어서,
추가 솔레노이드 밸브(9)가, 상기 통기 밸브(3)의 제어 챔버에 연결되어, 상기 통기 밸브(3)의 멤브레인 양측의 압력을 브레이크 실린더 압력과 균등화시켜 멤브레인 양측의 압력 차이를 감소시키는 것을 특징으로 하는 브레이크 밸브 장치.A brake valve device for a rail brake system configured to control the flow of air to brake cylinders, comprising:
It includes a maintenance valve 2 and a vent valve 3, wherein the maintenance valve 2 and the vent valve 3 each have a control chamber, the vent valve 3 is a membrane valve, In the brake valve device in which the maintenance valve (2) is piloted by the maintenance solenoid valve (6) and the vent valve (3) is piloted by the vent solenoid valve (10),
An additional solenoid valve (9) is connected to the control chamber of the vent valve (3), equalizing the pressure on both sides of the membrane of the vent valve (3) with the brake cylinder pressure to reduce the pressure difference on both sides of the membrane. brake valve device. 제 1 항에 있어서,
상기 추가 솔레노이드 밸브(9)는 상기 유지 밸브(2)의 출구와 유체 연통하는 것인, 브레이크 밸브 장치.According to claim 1,
wherein the additional solenoid valve (9) is in fluid communication with the outlet of the retaining valve (2). 제 1 항 또는 제 2 항에 있어서,
상기 추가 솔레노이드 밸브(9)는 상기 통기 솔레노이드 밸브(10)의 입구와 유체 연통하는 것인, 브레이크 밸브 장치.According to claim 1 or 2,
wherein the additional solenoid valve (9) is in fluid communication with the inlet of the vent solenoid valve (10). 제 1 항 또는 제 2 항에 있어서,
상기 추가 솔레노이드 밸브(9)는 상기 브레이크 실린더 압력을 받아들이는 것인, 브레이크 밸브 장치.According to claim 1 or 2,
wherein the additional solenoid valve (9) receives the brake cylinder pressure. 제 1 항 또는 제 2 항에 있어서,
사용 중에 상기 브레이크를 해제하기 위해, 상기 유지 밸브(2)는, 상기 유지 솔레노이드 밸브(6)에 전기를 공급하여 상기 유지 밸브(2)의 제어 챔버에 공급 압력을 가함으로써 폐쇄 상태로 유지되며, 상기 브레이크 실린더 내의 브레이크 압력은, 상기 통기 솔레노이드 밸브(10)에 전기를 공급하여 상기 통기 밸브(3)의 제어 챔버를 배기시킴으로써, 대기로 통기되는 것인 브레이크 밸브 장치. According to claim 1 or 2,
To release the brake during use, the holding valve (2) is kept closed by energizing the holding solenoid valve (6) to apply supply pressure to the control chamber of the holding valve (2); brake pressure in the brake cylinder is vented to the atmosphere by energizing the vent solenoid valve (10) to exhaust a control chamber of the vent valve (3). 제 1 항 또는 제 2 항에 있어서,
사용 중에 브레이크의 작동에 후속해서 상기 브레이크 실린더 내의 압력을 유지하기 위해, 상기 유지 밸브(2)는, 상기 유지 솔레노이드 밸브(6)에 전기를 공급하여 상기 유지 밸브(2)의 제어 챔버에 공급 압력의 적용을 가능케 함으로써 폐쇄되며, 이어서 상기 통기 밸브(3)의 멤브레인 양측의 압력은, 균등화 솔레노이드 밸브(9)에 전기를 공급함으로써 브레이크 실린더 압력과 균등화되는 것인 브레이크 밸브 장치.According to claim 1 or 2,
In order to maintain the pressure in the brake cylinder following operation of the brake during use, the maintenance valve 2 energizes the maintenance solenoid valve 6 to supply pressure to the control chamber of the maintenance valve 2. and then the pressure on both sides of the membrane of the vent valve (3) is equalized with the brake cylinder pressure by energizing the equalization solenoid valve (9).
KR1020217009071A 2018-09-11 2019-09-11 pressure equalization valve KR102511841B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP18193585.9 2018-09-11
EP18193585.9A EP3623238B1 (en) 2018-09-11 2018-09-11 Pressure equalisation valve
PCT/EP2019/074228 WO2020053279A1 (en) 2018-09-11 2019-09-11 Pressure equalisation valve

Publications (2)

Publication Number Publication Date
KR20210046776A KR20210046776A (en) 2021-04-28
KR102511841B1 true KR102511841B1 (en) 2023-03-17

Family

ID=63557256

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020217009071A KR102511841B1 (en) 2018-09-11 2019-09-11 pressure equalization valve

Country Status (8)

Country Link
US (1) US11673539B2 (en)
EP (1) EP3623238B1 (en)
JP (1) JP7147051B2 (en)
KR (1) KR102511841B1 (en)
CN (1) CN112672938B (en)
ES (1) ES2875858T3 (en)
PL (1) PL3623238T3 (en)
WO (1) WO2020053279A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2875858T3 (en) * 2018-09-11 2021-11-11 Knorr Bremse Systeme Pressure compensation valve
DE102018127822A1 (en) * 2018-11-07 2020-05-07 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Valve arrangement and a method for pressure control

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB964104A (en) 1960-08-11 1964-07-15 Westinghouse Brake & Signal Improved brake valve device
AT331660B (en) * 1971-09-17 1976-08-25 Graubremse Gmbh DEVICE FOR QUICKLY REGULATING THE PRESSURE IN THE INDIVIDUAL PNEUMATIC BRAKE CYLINDER OF VEHICLE BRAKING SYSTEMS WITH ANTI-SKID CONTROL
DE2606199A1 (en) * 1976-02-17 1977-08-18 Bosch Gmbh Robert PILOT VALVE FOR ANTI-SKID SYSTEMS IN MOTOR VEHICLES
GB2097498B (en) 1981-04-21 1985-04-24 Westinghouse Brake & Signal Train braking systems
ZA826331B (en) * 1981-09-11 1983-07-27 Westinghouse Brake & Signal Control valve arrangement
DE3430408A1 (en) * 1984-08-17 1986-02-27 Knorr-Bremse GmbH, 8000 München Brake pressure retaining device for direct-release air brakes of rail vehicles
DE3728463A1 (en) * 1987-08-26 1989-03-09 Wabco Westinghouse Fahrzeug CONTROL VALVE DEVICE
GB8727297D0 (en) * 1987-11-20 1987-12-23 Lucas Ind Plc Solenoid valve
DE3825103A1 (en) 1988-07-23 1990-01-25 Zeiss Carl Fa METHOD FOR ILLUMINATING AN OBJECT IN A TRANSMISSION ELECTRON MICROSCOPE
DE3825549A1 (en) * 1988-07-27 1990-02-01 Knorr Bremse Ag SLIDE PROTECTION VALVE FOR AIR BRAKE VEHICLES
DE3927110A1 (en) * 1989-08-17 1991-02-21 Bosch Gmbh Robert SOLENOID VALVE WITH EXCITING CURRENT CONTROL DEVICE
DE59004512D1 (en) * 1989-12-22 1994-03-17 Bosch Gmbh Robert Pressure control valve.
US5083843A (en) 1990-08-20 1992-01-28 Knorr Brake Holding Corporation Automatic graduated/direct release valve
GB9102313D0 (en) * 1991-02-02 1991-03-20 Bendix Ltd Fluid pressure modulator valve device
JPH06298073A (en) * 1993-02-16 1994-10-25 Nabco Ltd Brake control device for rolling stock, and switching valve with holding mechanism
JPH07277166A (en) * 1994-04-02 1995-10-24 Hino Motors Ltd Control valve for anti-lock brake system
GB2331562A (en) * 1997-08-21 1999-05-26 Grau Ltd Anti-lock braking system
JPH11157440A (en) * 1997-11-28 1999-06-15 Akebono Brake Ind Co Ltd Air control valve
US6209971B1 (en) * 1998-06-30 2001-04-03 Alliedsignal Truck Brake Systems Company Non flow-through solenoid for heavy vehicle ABS modulators
JP3814164B2 (en) * 2000-06-28 2006-08-23 ウエスチングハウス・エヤー・ブレーキ・テクノロジーズ・コーポレイション Method for controlling railway vehicle brakes to provide a phase release valve for a railway vehicle and a brake pressure release step
US20040130207A1 (en) * 2003-01-07 2004-07-08 Westinghouse Air Brake Technologies Three state magnet valve
GB2401330B (en) * 2003-05-09 2006-04-12 Westinghouse Brakes Pressure equalisation device
US20050057088A1 (en) * 2003-05-23 2005-03-17 Washington William E. Pneumatic closed-looped antilock pressure modulating device for pneumatic brake systems
GB0723862D0 (en) 2007-12-06 2008-01-16 Knorr Bremse Rail Sys Uk Ltd Brake system
DE102008028440A1 (en) * 2008-06-17 2009-12-31 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Pressure control valve arrangement with diaphragm valves for controlling a fluid pressure in an ABS brake system of a vehicle with integrally integrated in a housing part valve seat
DE102008028439B3 (en) * 2008-06-17 2009-10-15 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Method for producing pressure control valve arrangement for controlling a fluid pressure in an ABS brake system of a vehicle
DE102009030901A1 (en) * 2009-06-29 2010-12-30 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Pressure control valve arrangement with pressure medium channel with oval cross-section
EP2821303B1 (en) * 2013-07-05 2016-09-14 KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH Electro-pneumatic parking brake
JP6772070B2 (en) * 2014-05-28 2020-10-21 フェヴレ・トランスポール・イタリア・ソチエタ・ペル・アツィオーニＦＡＩＶＥＬＥＹ ＴＲＡＮＳＰＯＲＴ ＩＴＡＬＩＡ Ｓ．ｐ．Ａ． Railroad vehicle electro-pneumatic braking system
GB2529480B (en) * 2014-08-22 2020-11-04 Knorr Bremse Rail Systems Uk Ltd Valve arrangement
DE102015016264A1 (en) * 2015-12-15 2017-06-22 Wabco Europe Bvba Valve unit for pressure modulation in a compressed air brake system
ES2875858T3 (en) * 2018-09-11 2021-11-11 Knorr Bremse Systeme Pressure compensation valve

Also Published As

Publication number Publication date
US11673539B2 (en) 2023-06-13
KR20210046776A (en) 2021-04-28
EP3623238A1 (en) 2020-03-18
EP3623238B1 (en) 2021-03-31
PL3623238T3 (en) 2021-09-13
US20220048485A1 (en) 2022-02-17
JP7147051B2 (en) 2022-10-04
CN112672938A (en) 2021-04-16
WO2020053279A1 (en) 2020-03-19
JP2021536402A (en) 2021-12-27
CN112672938B (en) 2023-05-02
ES2875858T3 (en) 2021-11-11

Similar Documents

Publication Publication Date Title
KR102511841B1 (en) pressure equalization valve
US9157543B2 (en) Parking brake device
CN108137019B (en) Valve unit for pressure modulation in a compressed air brake system
CA3016441A1 (en) Cut-off valve and hot wheel protection valve arrangement
US7222922B2 (en) Three-state magnet valve
US11731600B2 (en) ABS pressure control valve assembly
AU2017229218B2 (en) Brake cylinder maintaining valve
US11072218B2 (en) Compressed-air supply system and method to operating a compressed-air supply system
KR102229795B1 (en) Automatic brake release system for railway vehicles
EP3895944B1 (en) Railway vehicle brake pressure control device, and control method therefor
US20110140028A1 (en) Valve
CA2936275A1 (en) Quick-action bleeder valve device for pneumatic actuators of pneumatic systems, and pneumatic system having a quick-action bleeder valve device of this type
CN205168480U (en) Commercial vehicle hill start auxiliary system air -operated controller solenoid valve
US1309787A (en) Brake
US1801859A (en) Fluid-pressure brake
EP0516348A2 (en) Fluid pressure modulator valve apparatus
EP3183147A1 (en) Valve arrangement
GB848111A (en) Fluid pressure braking system for railway vehicles
GB190401388A (en) Improvements in Fluid Pressure Brake Apparatus for Railway and like Vehicles.
JP2022506698A (en) Valve assembly and method for controlling pressure
JPH0427737Y2 (en)
GB121151A (en) Improvements in Air Brake Apparatus.
CA2508745A1 (en) Pneumatic valve with an enhanced exhaust flow control feature
GB163435A (en) Improvements relating to train speed controlling systems
GB190722124A (en) Improvements relating to Fluid Pressure Brakes for Railway and like Vehicles.

Legal Events

Date Code Title Description
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant